Dont see anything wrong with your xml and no the screening should not be a problem.

Hood

Thanks Hood but just got it working now. Don’t know if it matters but there is a dip switch on the BOB which controls the COM to either be +5V or GND. I switched that to GND, re started all and nothing then put it back to +5V restarted and now all works well including the limits. But I did put a 0.4mF capacitor on the limits and the probe.

But still have two hick ups. The most serious is that when I home the Y / A axes the gantry goes away from the home position. If I click on the reverse tick on the home/limits screen then my keyboard arrows are reversed and don’t like that because it gets confusing. Perhaps I can change on Y / A the active low tick from green now to red?

Also with the probe as soon as I touch the alligator clip to the bit I get the message "limit switch is triggered"

If you have any tips please let me know otherwise I will keep trying

Nicolas

To change the homing direction you choose Home Negative or not.

regarding the probe, sounds like either you have it connected to a wrong input, ie a limit or e-stop, or you have noise.
Hood

Got the homing direction ok, thanks Hood, and now from diagnostic screen when I click the X or Z to home nothing moves. The X and Z move nicely with the keyboard and the rest all working fine. Only he green light comes ON when I click to home X or Z. I attach my homing limits screen in case you can see something

Any idea why I cant home them two?

The X and Z home switches were not enabled in your .xml I downloaded yesterday

Thank you Gerry, my silly mistake which I noticed later